CN106868974A - A kind of complete deep formula emulsified asphalt cold renewal paving structure - Google Patents
A kind of complete deep formula emulsified asphalt cold renewal paving structure Download PDFInfo
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- CN106868974A CN106868974A CN201710138118.4A CN201710138118A CN106868974A CN 106868974 A CN106868974 A CN 106868974A CN 201710138118 A CN201710138118 A CN 201710138118A CN 106868974 A CN106868974 A CN 106868974A
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- asphalt
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
- E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
Abstract
The invention discloses a kind of complete deep formula emulsified asphalt cold renewal paving structure.The complete deep formula emulsified asphalt cold renewal paving structure includes common emulsified asphalt cold renewal basic unit, hgh-performance emulsified cold asphalt rehabilitation binder course and micro-surface area finishing coat；The hgh-performance emulsified cold asphalt rehabilitation binder course point two-layer making；The dynamic stability of the hgh-performance emulsified cold asphalt rehabilitation binder course is more than 1500 times/mm, and the four-point bending fatigue test of 200 μm of normal strain controlling pattern under the conditions of 15 DEG C is more than 300,000 times, and freeze thawing fatigue ratio is more than 80%.Full depth formula emulsified asphalt cold renewal paving structure of the invention, can be mated formation using cool mix technology, reduce carbon emission, reduce environmental pollution, this pavement structure has certain to Reflective Cracking Resistance simultaneously, can effectively prevent pavement structure from fatigue rupture occur, with good application value.
Description
Technical field
The present invention relates to a kind of complete deep formula emulsified asphalt cold renewal paving structure, belong to road-surface-paving technology field.
Background technology
At present, by Large scale construction for many years, mileage open to traffic is increased rapidly China's highway, ends for the end of the year 2012,
China is open to traffic highway mileage more than 90,000 kilometers, occupies second place of the world, and what is brought after Large scale construction is maintenance of surface
Increasing, Bituminous Pavement Cold Regeneration is exactly the one kind in numerous maintenance technologies.
Conventional emulsification cold asphalt rehabilitation structure, usual Emulsified Asphalt Mixture as basic unit, need thereon thickness compared with
Big hot-mix asphalt mixture, and existing specification is not for the method for designing of emulsified asphalt cold-regenerated road surface structure.Lead
Cause on the one hand to realize that old asphalt pavement regenerates with layer position compound, regeneration rate is low, and heat is mixed production and discharges larger, nothing
Method realizes that green energy conservation emission reduction is constructed, and another aspect conventional emulsification cold asphalt rehabilitation pavement structure is empirically designed, pavement structure
Often there are the fatigue ruptures such as crack, cracking, have a strong impact on the performance of cold-regenerated road surface structure.
The content of the invention
It is an object of the invention to provide a kind of complete deep formula emulsified asphalt cold renewal paving structure, can be carried out using cool mix technology
Mat formation, reduce carbon emission, reduce environmental pollution, at the same this pavement structure have it is certain to Reflective Cracking Resistance, energy
Effectively prevent pavement structure from fatigue rupture occur, with good application value.
Complete deep formula emulsified asphalt cold renewal paving structure provided by the present invention, from top to bottom, including common emulsified asphalt
Cold renewal basic unit, hgh-performance emulsified cold asphalt rehabilitation binder course and micro-surface area finishing coat；
The hgh-performance emulsified cold asphalt rehabilitation binder course point two-layer making, can improve the compactness of each binder course；
The dynamic stability of the hgh-performance emulsified cold asphalt rehabilitation binder course is more than 1500 times/mm, normal under the conditions of 15 DEG C
The four-point bending fatigue test of 200 μm of strain controlling pattern is more than 300,000 times, and freeze thawing fatigue ratio is more than 80%.
In above-mentioned cold renewal paving structure, the thickness of the hgh-performance emulsified cold asphalt rehabilitation binder course can for 16~
20cm, such as 18cm, individual layer placement thickness can be 8~10cm.
In above-mentioned cold renewal paving structure, the compound that the hgh-performance emulsified cold asphalt rehabilitation binder course is used is in 20
10Hz dynamic modulus under the conditions of DEG C is 8000Mpa~11000Mpa, such as 9500Mpa.
In above-mentioned cold renewal paving structure, the level of the compound that the hgh-performance emulsified cold asphalt rehabilitation binder course is used
It is with scope：
Standard mesh 26.5mm percent of pass scope is 100%；Standard mesh 19mm percent of pass scope is 90~100%；Mark
Quasi- sieve aperture 13.2mm percent of pass scope is 75~90%；Standard mesh 9.5mm percent of pass scope is 55~75%；Standard mesh
4.75mm percent of pass scope is 30~60%；Standard mesh 2.36mm percent of pass scope is 20~50%；Standard mesh 0.3mm leads to
It is 5~21% to cross rate scope；Standard mesh 0.075mm percent of pass scope is 2~8%.
In above-mentioned cold renewal paving structure, the emulsified asphalt that the hgh-performance emulsified cold asphalt rehabilitation binder course is used
Spy controls index：
Standard path viscometer method25.3The viscosity of calculating is 12~60s；
Softening point is not less than 48 DEG C；
25 DEG C of ductilities are as many as 100cm；
The special control of the hgh-performance emulsified cold asphalt rehabilitation compound that the hgh-performance emulsified cold asphalt rehabilitation binder course is used
Index is：
Lime is used as active additive；
Voidage is 7%~10%, such as 9.2%.
In above-mentioned cold renewal paving structure, the thickness of the common emulsified asphalt cold renewal basic unit is 15~20cm, such as
16cm, by the way of individual layer making；
1~the 2.5cm of thickness of the micro-surface area finishing coat.
In above-mentioned cold renewal paving structure, the dynamic stability of the common emulsified asphalt cold renewal basic unit is more than 1500
Secondary/mm, the normal strain controlling pattern under the conditions of 15 DEG C is that 200 μm of four-point bending fatigue test is more than 50,000 times, and freeze thawing fatigue is strong
Degree is than being more than 70%.
In above-mentioned cold renewal paving structure, 20 DEG C of conditions of compound that the common emulsified asphalt cold renewal basic unit uses
Lower 10Hz dynamic modulus is 6500Mpa~8500Mpa, and its grading limit is：
The grading limit of common emulsified asphalt cold regeneration mix is：
Standard mesh 26.5mm percent of pass scope is 100%；Standard mesh 19mm percent of pass scope is 90~100%；Mark
Quasi- sieve aperture 9.5mm percent of pass scope is 60~80%；Standard mesh 4.75mm percent of pass scope is 35~65%；Standard mesh
2.36mm percent of pass scope is 20~50%；Standard mesh 0.3mm percent of pass scope is 3~21%；Standard mesh 0.075mm leads to
It is 2~8% to cross rate scope.
In above-mentioned cold renewal paving structure, the grading limit of the micro-surface area finishing coat is：
Standard mesh 9.5mm percent of pass scope is 100%；Standard mesh 4.75mm percent of pass scope is 70~90%；Mark
Quasi- sieve aperture 2.36mm percent of pass scope is 45~70%；Standard mesh 1.18mm percent of pass scope is 28~50%；Standard mesh
0.6mm percent of pass scope is 19~34%；Standard mesh 0.3mm percent of pass scope is 12~25%；Standard mesh 0.15mm leads to
It is 7~18% to cross rate scope；Standard mesh 0.075mm percent of pass scope is 5~15%.
In above-mentioned cold renewal paving structure, calculated with following traffic loadings, the common emulsified asphalt cold renewal basic unit
The tensile strain at the bottom be not more than 60 μm；
Medium traffic load is 100KN；
Heavy Traffic load is 150KN；
Very heavy traffic load is 180KN；
The specific calculation using elastic multi-layer theory, such as uses BISAR softwares.
Prior art is compared, and paved road structure of the present invention has the following advantages that：
Conventional emulsification cold asphalt rehabilitation structure, usual Emulsified Asphalt Mixture as basic unit, need thereon thickness compared with
Big hot-mix asphalt mixture, and existing specification is not directed to the method for designing of emulsified asphalt cold-regenerated road surface structure, leads
Cause on the one hand to realize that old asphalt pavement regenerates with layer position compound, regeneration rate is low, and heat is mixed production and discharges larger, nothing
Method realizes that green energy conservation emission reduction is constructed, and another aspect conventional emulsification cold asphalt rehabilitation pavement structure is empirically designed, pavement structure
Often there are the fatigue ruptures such as crack, cracking, have a strong impact on the performance of cold-regenerated road surface structure.The all compounds in road surface of the present invention
Mix is not heated, reduces carbon emission, reduces environmental pollution；Realize that old asphalt pavement regenerates with layer position compound,
So as to obtain significant economical, societal benefits.
Brief description of the drawings
Fig. 1 is the structural representation of full depth formula emulsified asphalt cold-regenerated road surface structure of the invention.
Each mark is as follows in figure：
1 common emulsified asphalt cold renewal basic unit, 2,3 hgh-performance emulsified cold asphalt rehabilitation binder courses, 4 micro-surface area finishing coats.
Specific embodiment
Experimental technique used in following embodiments is conventional method unless otherwise specified.
Material used, reagent etc. in following embodiments, unless otherwise specified, commercially obtain.
As shown in figure 1, be the schematic diagram of full depth formula emulsified asphalt cold-regenerated road surface structure of the invention, from top to bottom, including
Micro-surface area finishing coat 4, hgh-performance emulsified cold asphalt rehabilitation binder course 2 and 3 and common emulsified asphalt cold renewal basic unit 1, wherein
The semi-rigid type base thickness of common emulsified asphalt cold renewal layer less than 1 is 36cm.
The thickness of common emulsified asphalt cold renewal basic unit 1 is 16cm, and dynamic stability is 1500 times/mm, under the conditions of 15 DEG C
The four-point bending fatigue test of normal 200 μm of strain controlling pattern is 50,000 times, and freeze thawing fatigue ratio is 70%.Cementing material is selected
With common cold renewal emulsified asphalt (index is as shown in table 1), aggregate mainly from the old bitumen pavement material of live milling,
While appropriate admixture part new aggregate, cement (1.5%) and water etc., its remarkable advantage is construction under normal temperature, without heating, is saved
The energy；Realize the regeneration of old pipeline material, it is to avoid environmental pollution, environment protecting is obvious；From Life Cycle Cost point
From the perspective of analysis, its economic performance has suitable advantage compared with traditional material.
The gross thickness of hgh-performance emulsified cold asphalt rehabilitation binder course 2 and 3 is 18cm (every layer is 9cm), and dynamic stability is
1500 times/mm, the four-point bending fatigue test of 200 μm of normal strain controlling pattern under the conditions of 15 DEG C is 300,000 times, freeze thawing fatigue
Strength ratio is 80%.Cementing material splits slow-setting emulsified asphalt (index is as shown in table 4) slowly from modified, and aggregate is mainly from existing
The old bitumen pavement material of field milling, while appropriate admixture part new aggregate, levigate pulverized limestone (1.5%~2.5%) and water etc.,
Its remarkable advantage is construction under normal temperature, without heating, energy saving；Realize the regeneration of old pipeline material, it is to avoid environment
Pollution, environment protecting is obvious；From from the perspective of Life Cycle Cost Analysis, its economic performance has suitable compared with traditional material
Advantage.
The thickness of micro-surface area finishing coat (MS-3) 4 is 1~2.5cm, and cementing material splits rapid-setting emulsified asphalt slowly from modified,
, mainly from basalt aggregate, cement and water etc., cover speed of application is fast, and compound is without heating, cover emulsified asphalt for aggregate
Can partially penetrate into hgh-performance emulsified cold asphalt rehabilitation basic unit, form stronger cohesive force, and the anti-zoned performance of micro-surface area finishing coat
It is good.
Specific implementation step and technical requirements are as follows：
According to the requirement of above-mentioned pavement structure, making completes correlation test road, Experiment Road total length 200m.
1st, common emulsified asphalt cold renewal basic unit 1
(1) material requirements
Road-surface milling material (RAP) should be free of weeds and other harmful substances matter, including mud and clay, and cold in-plant recycling can be by
Milling material is divided into 2~3 grades, conveniently carries out gradation design；Cement should use slow setting Portland cement, strength grade 32.5 with
On, each age strength, stability should reach corresponding index requirement, and more than 3 hours presetting period, final setting time are small not less than 6
When.
Emulsified asphalt technology index is as shown in table 1.
The technical requirements of the common cold renewal emulsified asphalt of table 1
(2) level is matched somebody with somebody and is required
Table 2 is Cold Recycled Mixture with Emulsified Asphalt gradation design scope.
The Cold Recycled Mixture with Emulsified Asphalt engineering design grading envelope of table 2
(3) construction requirement
Before the common emulsified asphalt that paves cold renewal basic unit 1, semi-rigid going to a grassroots level is cleaned, and to semi-rigid type base
Ftracture and crush and be disposed, cold regeneration mix should control water content, prevent compound overdrying or overly moist and dry and wet not
Even, using single-wheel road roller, two-wheel double shake road roller and pneumatic-tired rollers, specific compaction process is with field test road for field compaction
Determine that technique is defined, the good number of machine passes of field control, it is ensured that compactness, mixture gap rate is controlled between 8%~14%, it is real
Border porosity is 12%.
(4) mixture performance requirement
The performance requirement of table 3
2nd, hgh-performance emulsified cold asphalt rehabilitation basic unit 2,3
(1) material requirements
Road-surface milling material (RAP) should be free of weeds and other harmful substances matter, including mud and clay, and cold in-plant recycling can be by
Milling material is divided into 3 grades, conveniently carries out gradation design；Lime should should use standard above grade 2 using levigate pulverized limestone, lime.
Hgh-performance emulsified bitumen technology requirement is as shown in table 4.
The technical requirements of the high-performance cold renewal emulsified asphalt of table 4
(2) level is matched somebody with somebody and is required
Table 5 is Cold Recycled Mixture with Emulsified Asphalt gradation design scope.
The hgh-performance emulsified cold asphalt rehabilitation compound engineering design grading envelope of table 5
(3) construction requirement
Pave before hgh-performance emulsified cold asphalt rehabilitation basic unit 2, the common emulsified asphalt cold renewal basic unit that should terminate in health
Making heated bitumen synchronous surface dressing in (middle grain formula) 1, cold regeneration mix should control water content, prevent compound overdrying or
Overly moist and dry and wet are irregular, and field compaction is specifically compacted work using single-wheel road roller, two-wheel double shake road roller and pneumatic-tired rollers
Skill determines that technique is defined by field test road, the good number of machine passes of field control, it is ensured that compactness, and the control of mixture gap rate exists
Between 7%~10%, actual porosity is 9.2%.
Before cold renewal layer 3 paves, dispensed in the hgh-performance emulsified cold asphalt rehabilitation basic unit (middle grain formula) 2 that should terminate in health
Modified emulsifying asphalt sticking layer oil, compaction process control is identical with cold renewal layer 2.
(4) mixture performance requirement
The performance requirement of table 6
3rd, micro-surface area finishing coat (MS-3) 4
(1) material requirements
Micro-surface area mineral aggregate can be mixed to match somebody with somebody using coarse aggregate, miberal powder of different size etc. and be formed, lithology multidigit basalt.It is micro-
The fillers such as miberal powder, cement, calcium hydroxide can be filled at table in mineral aggregate.Filler should dry, loose, without conglomeration.Additive it is main
Effect be regulation slurry mixture can the workability such as mixing time, de-emulsification speed, open to traffic time, and to a certain extent
Change the pavement performance of compound.Conventional additive includes inorganic salts additive, organic additive etc..For cation
Emulsified Asphalt Mixture, inorganic salts additive can typically extend can the mixing time, delay shaping.
Micro-surface area modified emulsifying asphalt technical requirements are as shown in table 7.
The technical requirements of the micro-surface area emulsified asphalt of table 7
(2) level is matched somebody with somebody and is required
Table 8 is micro-surfacing mixture gradation design scope.
The micro-surface area engineering design grading envelope of table 8
(3) construction requirement
Micro-surface area must be constructed using special-purpose machinery.Micro-surface area paver, batchbox is necessary for high-power forced double-axis and stirs
Mix formula, pave groove must with double distributing device, paver must have accurate measuring systems and recordable or display mineral aggregate,
The consumption of emulsified asphalt etc., must also pave groove when rut is repaired using micro-surface area equipped with special V-shaped rut.
The weather conditions of micro-surface area construction should meet：
(1) construction, the temperature in preserving period should be higher than that 10 DEG C；
(2) must not be constructed in the rainy day, when compound is not yet molded and just meets rain after being run into construction or being constructed, should be after the rain
The material that will be unable to normal shaping is rooted out.
Forbid to carry out micro-surface area on the road surface of overly moist or ponding and slurry seal is constructed.
4th, pavement structure mechanics check computation
The full depth formula emulsified asphalt cold-regenerated road surface structure parameter of table 9
Calculated by BISAR softwares, when load is 100KN, the low curved drawing of layer of common emulsified asphalt cold renewal basic unit 1 should
It is changed into 40 μm, when load is 150KN, the low flexural-tensile strain of layer of common emulsified asphalt cold renewal basic unit 1 is 58 μm, it is seen then that this
Invention pavement structure meets the requirement of road structure Mechanics Calculation.
This Experiment Road compared Pavement on Semi-rigid Type Base around by the Performance Observation of 1 year, and transverse joint does not occur in this Experiment Road,
Pavement cracking phenomenon is greatly reduced, and water stability detritus semi-rigid pavement occurs a transverse joint per 20m, by shrinkage cracking in semi-rigid base
Cause, the generation of transverse joint can cause Moisture Damage herein, and this Experiment Road does not find the Moisture Damage phenomenon such as pit.
Claims (10)
1. a kind of complete deep formula emulsified asphalt cold renewal paving structure, it is characterised in that：From top to bottom, the paving structure includes general
Logical emulsified asphalt cold renewal basic unit, hgh-performance emulsified cold asphalt rehabilitation binder course and micro-surface area finishing coat；
The hgh-performance emulsified cold asphalt rehabilitation binder course point two-layer making；
The dynamic stability of the hgh-performance emulsified cold asphalt rehabilitation binder course is more than 1500 times/mm, the normal strain under the conditions of 15 DEG C
The four-point bending fatigue test of 200 μm of control model is more than 300,000 times, and freeze thawing fatigue ratio is more than 80%.
2. cold renewal paving structure according to claim 1, it is characterised in that：The hgh-performance emulsified cold asphalt rehabilitation connection
The thickness for tying layer is 16~20cm.
3. cold renewal paving structure according to claim 1 and 2, it is characterised in that：The hgh-performance emulsified pitch is cold again
10Hz dynamic modulus of the compound that raw binder course is used under the conditions of 20 DEG C is 8000Mpa~11000Mpa.
4. the cold renewal paving structure according to any one of claim 1-3, it is characterised in that：The hgh-performance emulsified drip
The grading limit of the compound that blue or green cold renewal binder course is used for：
Standard mesh 26.5mm percent of pass scope is 100%；Standard mesh 19mm percent of pass scope is 90~100%；Standard screen
Hole 13.2mm percent of pass scope is 75~90%；Standard mesh 9.5mm percent of pass scope is 55~75%；Standard mesh 4.75mm
Percent of pass scope is 30~60%；Standard mesh 2.36mm percent of pass scope is 20~50%；Standard mesh 0.3mm percent of pass models
Enclose is 5~21%；Standard mesh 0.075mm percent of pass scope is 2~8%.
5. the cold renewal paving structure according to any one of claim 1-4, it is characterised in that：The hgh-performance emulsified drip
The special control index of the emulsified asphalt that blue or green cold renewal binder course is used for：
Standard path viscometer method25.3The viscosity of calculating is 12~60s；
Softening point is not less than 48 DEG C；
25 DEG C of ductilities are as many as 100cm；
The special control index of the hgh-performance emulsified cold asphalt rehabilitation compound that the hgh-performance emulsified cold asphalt rehabilitation binder course is used
For：
Lime is used as active additive；
Voidage is 7%~10%.
6. the cold renewal paving structure according to any one of claim 1-5, it is characterised in that：The common emulsified asphalt
The thickness of cold renewal basic unit is 15~20cm；
1~the 2.5cm of thickness of the micro-surface area finishing coat.
7. the cold renewal paving structure according to any one of claim 1-6, it is characterised in that：The common emulsified asphalt
The dynamic stability of cold renewal basic unit is more than 1500 times/mm, and the four-point bending of 200 μm of normal strain controlling pattern under the conditions of 15 DEG C is tired
Labor experiment is more than 50,000 times, and freeze thawing fatigue ratio is more than 70%.
8. the cold renewal paving structure according to any one of claim 1-7, it is characterised in that：The common emulsified asphalt
10Hz dynamic modulus is 6500Mpa~8500Mpa under the conditions of 20 DEG C of the compound that cold renewal basic unit uses, and its grading limit is：
The grading limit of common emulsified asphalt cold regeneration mix is：
Standard mesh 26.5mm percent of pass scope is 100%；Standard mesh 19mm percent of pass scope is 90~100%；Standard screen
Hole 9.5mm percent of pass scope is 60~80%；Standard mesh 4.75mm percent of pass scope is 35~65%；Standard mesh 2.36mm
Percent of pass scope is 20~50%；Standard mesh 0.3mm percent of pass scope is 3~21%；Standard mesh 0.075mm percent of pass models
Enclose is 2~8%.
9. the cold renewal paving structure according to any one of claim 1-8, it is characterised in that：The micro-surface area finishing coat
Grading limit be：
Standard mesh 9.5mm percent of pass scope is 100%；Standard mesh 4.75mm percent of pass scope is 70~90%；Standard screen
Hole 2.36mm percent of pass scope is 45~70%；Standard mesh 1.18mm percent of pass scope is 28~50%；Standard mesh 0.6mm
Percent of pass scope is 19~34%；Standard mesh 0.3mm percent of pass scope is 12~25%；Standard mesh 0.15mm percent of pass models
Enclose is 7~18%；Standard mesh 0.075mm percent of pass scope is 5~15%.
10. the cold renewal paving structure according to any one of claim 1-9, it is characterised in that：With following traffic loadings
Calculate, the tensile strain at the bottom of the common emulsified asphalt cold renewal basic unit is not more than 60 μm；
Medium traffic load is 100KN；
Heavy Traffic load is 150KN；
Very heavy traffic load is 180KN.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20205590U1 (en) * | 2002-04-10 | 2003-08-28 | P V P Polymer Verarbeitung Und | Cover for floors, streets and bridge elements comprises a bottom layer which at least partly consists of recycled elastic material, and top layer of cast asphalt |
| EP2202359A1 (en) * | 2008-12-29 | 2010-06-30 | C.I.C. Compagnia Italiana Costruzioni S.p.A. | Semi-flexible multi-layer paving |
| CN201648909U (en) * | 2009-12-09 | 2010-11-24 | 江西赣粤高速公路股份有限公司 | Cold regeneration layer structure for broken road surface |
| CN205152744U (en) * | 2015-10-20 | 2016-04-13 | 湖南万道科技有限公司 | Cold regeneration road surface of emulsified asphalt |
| CN105862541A (en) * | 2016-03-24 | 2016-08-17 | 北京盛广拓公路科技有限公司 | Control process of cold-recycling on-site compactness |
-
2017
- 2017-03-09 CN CN201710138118.4A patent/CN106868974A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20205590U1 (en) * | 2002-04-10 | 2003-08-28 | P V P Polymer Verarbeitung Und | Cover for floors, streets and bridge elements comprises a bottom layer which at least partly consists of recycled elastic material, and top layer of cast asphalt |
| EP2202359A1 (en) * | 2008-12-29 | 2010-06-30 | C.I.C. Compagnia Italiana Costruzioni S.p.A. | Semi-flexible multi-layer paving |
| CN201648909U (en) * | 2009-12-09 | 2010-11-24 | 江西赣粤高速公路股份有限公司 | Cold regeneration layer structure for broken road surface |
| CN205152744U (en) * | 2015-10-20 | 2016-04-13 | 湖南万道科技有限公司 | Cold regeneration road surface of emulsified asphalt |
| CN105862541A (en) * | 2016-03-24 | 2016-08-17 | 北京盛广拓公路科技有限公司 | Control process of cold-recycling on-site compactness |
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